Update split names

README.md

@@ -13,11 +13,9 @@ size_categories:
 configs:
 - config_name: default
   data_files:
-  - split: test
-    name: pt
+  - split: pt
     path: "test_pt.jsonl"
-  - split: test
-    name: es
+  - split: es
     path: "test_es.jsonl"
 ---